View Full Version : S7-200 connection
February 7th, 2009, 11:50 AM
hi everyone ,,,,,
how can i connect PLC S7-313C with S7-224 cpu via MPI connection? :huh: does this need SIMATIC MANAGER or microWIN ?,,,,,
February 7th, 2009, 12:29 PM
S7-200 is programed in MicroWin. I have always connected using PPI. I do not think you can program thru and MPI but there are others who can give you a more definate answer on that.
February 8th, 2009, 03:25 AM
MPI for Microwin,
transmission rate standart for S200 is 19,5 Kbps.
If to set higher you will not be able to conect with PPI cable
February 8th, 2009, 05:13 AM
Follow this link to the Siemens support webpage; here is a FAQ showing how to use functions in the S7-300 (X_PUT and X_GET) to read and write data to a S7-200 CPU [so the programming for the comm functions is done in Step 7 Simatic Manager]:
Hope this helps,
February 8th, 2009, 06:40 AM
connect PLC S7-313C with S7-224 cpu via MPI connection?
Are you wanting to network your PLC's?
February 8th, 2009, 09:28 AM
yes i want building a network as i mentioned
i want the hardware configuration as well as software configuration (dchartier)
and i need to use microWIN ??
February 8th, 2009, 11:36 PM
I think EM 277 will do. I have used this to connect 300 and 200 with profibus. But if you see technical specification of this EM277 its written that it supports both MPI and profibus.
* For connection of the S7-22x to PROFIBUS DP (as slave) and MPI
* Can be simultaneously operated as MPI slave and DP slave
* Transmission rate max. 12 Mbps
* Can be used with CPU from version 6ES7 22x-xxx21-xxxx
I cant figure it out how I can connect Em277 with MPI though. Because in Net pro if I try to connect EM 277 module to MPI network it comes up with the message:
"You have to either select a DP module with a DP master system or DP slave in order to place a DP slave"
Bold part sounds like if you dont have DP port then you need to use DP Module CP 342-5 with 313.
Would like to know how EM277 can be connected to MPI n/w.
Edit:It seems that if you want to connect 200 to 300 then simply connect MPI port of 300 to Port 0 or 1 of 200. Make sure that this port of 200 has baud rate of 187.5Kbps. And then use X_PUT and X_GET instructions in 300 to communicate.No need of EM277.
Here is the link http://support.automation.siemens.com/WW/view/en/747743
February 10th, 2009, 12:14 PM
but what is the instruction that i have to use in microWIN to communicate with the S7-300?